PatchTheCVECVE-2026-76446: A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read
CVE-2026-76446 is a medium-severity flaw (CVSS 4.9) affecting identity services engine, identity services engine passive identity connector. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device. This vulnerability is due to improper restriction of XML external entity references. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read specific files on
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 69%) |
| CISA exploited list | No |
| Weakness | CWE-611 |
| Published | 2026-09-16 |
| Last modified | 2026-09-28 |
Last updated 2026-09-28 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Official advisories
- Cisco Security Advisories: Cisco Identity Services Engine Authentication Bypass Vulnerabilities 2026-09-24
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-76446?
identity services engine: upgrade to 3.3.0; identity services engine passive identity connector: upgrade to 3.3.0. Exact commands for each OS are on this page.
Is CVE-2026-76446 being exploited?
CVE-2026-76446 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-76446 affect?
CVE-2026-76446 affects identity services engine, identity services engine passive identity connector. Severity is medium (CVSS 4.9). A vulnerability in an API of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to read specific files on the underlying operating system of an affected device. This vulnerability is due to improper restrictio
How urgent is CVE-2026-76446?
Priority 25/100. No elevated risk signals yet.
Software pages
Cisco vulnerabilities · Cisco ISE vulnerabilities
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